Bag

ABSTRACT

A bag  10  is provided for carrying personal items such as money, keys and train tickets. The bag is expandable, having one or more collapsible portions  26, 28  about a main chamber which unfold into an extended position thereby providing additional volume for further personal items as and when required. The bag  10  may be carried in a number of different ways by the user and when any straps are not required, a sleeve is provided for their concealed stowage.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.K. Application No. 0920295.1, filed on Nov. 20, 2009; the contents of which is hereby incorporated by reference.

FIELD OF THE INVENTION

The present invention relates to a bag and particularly but not exclusively to a multi-purpose bag for typically carrying a multitude of personal items such as money, tickets, a mobile telephone and a laptop computer.

BACKGROUND TO THE INVENTION

Bags such as handbags and backpacks are commonly used by people to transport personal items about from place to place. The bag is typically selected according to the likely contents and the environment in which it will be used. For example, a briefcase is smart and designed for use in an office-type environment but it is unlikely to have the additional capacity required for carrying grocery items following an impromptu visit to the supermarket after work. Thus a separate grocery bag would be required.

Additionally, when the briefcase is then used in the supermarket environment, the carrying position of holding the briefcase by a short handle is unsuitable for heavy loads.

Alternatively, when transporting only a few small items, it is common, especially in northern Europe for men to carry these items in the pockets of the clothing that they wear instead of using a handbag, as a woman might. Placing an item in a pocket can spoil the line of a man's clothing. However, placing one or more items into an attaché case or a known general purpose backpack can lead to property damage, especially for electrical items such as MP3 players.

It is an object of the invention to provide a bag for personal items which reduces or substantially obviates the above mentioned problems and to provide a bag that is versatile in size and carrying position.

SUMMARY OF INVENTION

According to a first aspect of the invention there is provided a variable volume bag comprising a main chamber, the main chamber having an external wall with an inside face and an outside face, at least part of the external wall being moveable between at least one folded position, in which the useable volume of the main chamber and the external size of the bag is reduced, and at least one extended position in which the useable volume of the main chamber and the external size of the bag is increased, a material join disposed substantially at or proximate a fold position for facilitating movement to the folded position, and retaining means for securing the external wall in the folded position.

The bag is advantageous because it is versatile in size and internal volume. The internal space of the bag can be fully utilised in both the folded and extended positions. The material join of the fabric of the bag provides a natural break and fold line, which as described further below, serves to assist the user in moving the bag from the extended to folded position.

The means for securing the external wall in the folded position facilitates providing a bag of compact appearance when the additional volume provided by the extended position(s) is not required.

Preferably, the retaining means is a zip fastener. Alternatively, poppers or VELCRO® may also be used.

The external wall may be moveable in either or both of two positions, wherein the first position is located on a left side of the bag and the second position is located on a right side of the bag. The external wall may however additionally, or alternatively, be moveable in other positions such as on the upper side or lower sides of the bag.

This maximises the potential extra volume that can be gained in a single bag when moving the external surface into an extended position. Ideally, the first and second positions are symmetrical about the main chamber.

Each movable part of the external wall may include a side panel of the bag, and a portion of the front, rear, lower side and upper side of the bag.

Preferably, a continuous seam is provided around the side panel. This assists the moving of the part of external wall into the folded position.

A continuous seam may be provided around at least part of the periphery of the side panel and the remaining part of the periphery of the side panel is releasably fastened for providing access to the main chamber when the at least part of the external wall is in an extended position.

In an alternative arrangement, to one side of the bag, there may be a continuous seam around the side panel and in the second position, the bag may have a continuous seam provided around at least part of the periphery of the side panel with the remaining part of the periphery of the side panel being releasably fastened.

Ideally, the remaining part of the periphery of the side panel is releasably fastened by a zip fastener. This is especially useful for preventing small items falling out of the bag and also for hindering unauthorised access to the main chamber, for example by a thief.

The front portion of the or each moveable part may be provided in two panels, joined at a continuous seam, the continuous seam running substantially parallel to a fold line of the folded position.

The seam may be a bound seam, the binding of the seam being disposed on the inside face of the external wall. A bound seam presents a finished appearance to the seam as viewed when the user accesses the main chamber of the bag. Alternatively however, the seam may be laser cut and seam welded or made by any other suitable method, such as gluing and moulding.

Optionally, an opening closed by a zip fastener is provided in the external surface for providing access to the main chamber, the opening extending around at least part of the periphery of the main chamber.

The opening may be provided across the rear side of the bag and the zip is accessible when the or each part of the external wall is in either of the folded or extended positions. The opening may equally be provided across the front side of the bag.

Conveniently, the opening extends substantially across the full width of the rear of the bag. The opening may extend substantially across the full width of the front of the bag.

In a second aspect of the invention, there is provided a bag comprising an external sleeve and at least one strap, the at least one strap having a free end and a fixed end, the at least one strap being moveable in use between a stowed position in which the free end and substantially the length of the strap is stowed in the sleeve and an operative position in which the free end and substantially the length of the strap is removed from the sleeve and is releasably attached to the bag.

This construction is advantageous because it provides for a versatile bag where the strap or straps may be concealed when not required. This avoids loose straps becoming a minor annoyance to the user by catching on things when not in use. Additionally, by stowing away the unused straps, the straps are no longer potentially trappable in moving machinery. Furthermore, the straps cannot accidentally strike people as the user moves from place to place. In brief, the bag is a safer bag than one with loose straps.

The sleeve may be disposed on a rear side of the bag, the sleeve being oriented in longitudinal alignment with a longitudinal axis of the bag and with an aperture at least one end thereof.

The fixed end of the strap may be attached to the bag proximate the mouth of an aperture of the sleeve and proximate an upper side of the bag. The fixed end may be inside the mouth of the aperture.

The bag may further comprise at least one releasable fastening to which the free end of the at least one strap is releasably attached. Optionally, the releasable fastening is a male female connector arrangement.

A releasable fastening may be disposed on a flap extending from the junction of an under side of the bag and the rear side of the bag. This enables the user of the bag to wear the bag as a bum-bag, a handbag or a chest-bag where the strap of the bag is worn diagonally across the chest of the user. In the latter mode, the main chamber may be worn on the chest or the back of the user. Alternatively, the releasable fastening may be attached directly to the bag, without the flap.

A pair of second releasable fastenings may be disposed at the junction of the rear side of the bag with a side of the bag, proximate to the junction of the under side of the bag and the rear side of the bag.

Optionally, the carrying strap may include a padded section for providing additional comfort to the user of the bag in use.

Each carrying strap may be adjustable in length. This permits a user of any size or shape to wear the bag.

Conveniently, a handle may be disposed on an upper surface of the bag. This provides for an additional mode of carrying the bag and is useful when the user wishes to hold the bag close to their body, perhaps in densely populated areas such as underground train stations to avoid pickpocketting.

The bag may further comprise a shoulder strap releasably attached to the upper surface of the bag. Again, this provides an alternative mode of carrying the bag and may be more comfortable to the user when carrying particularly heavy loads. The strap is releasably attached to the bag and may be removed for stowage if its use is infrequent.

The bag may have a third releasable fastening disposed on the or each movable external wall accessible when the bag is in the extended position. This means that the bag made be carried in at least a backpack mode when the volume of the bag is increased. This feature maximises the number of carrying positions available in a single bag.

A single bag may combine any of the above features to achieve a bag that is both versatile in size, volume and carrying position.

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which:

FIG. 1 shows a schematic perspective front view of a first embodiment of bag in an expanded state;

FIG. 2 shows a schematic perspective front view of the bag of FIG. 1 in a contracted state;

FIG. 3 shows a schematic front view of the bag of FIG. 1 being opened from the contracted state to the expanded state;

FIG. 4 shows a schematic rear view of the bag of FIG. 1 in the contracted state, with rucksack straps attached for use;

FIG. 5 shows a schematic rear view of the bag of FIG. 1 in the expanded state, with rucksack straps attached for use;

FIG. 6 shows a schematic rear view of the bag of FIG. 5 in the contracted state, with a single strap attached for use as a bum-bag or chest bag;

FIG. 7 shows a schematic rear view of the bag of FIG. 5 in the contracted state, with the straps stowed;

FIG. 8 shows a schematic front view of a second embodiment of bag in the contracted state;

FIG. 9 shows a schematic front view of the bag of FIG. 8 in an expanded state with strap attached;

FIG. 10 shows a schematic plan view of the bag of FIG. 8 revealing the internal main chamber;

FIG. 11 shows a schematic front view of a third embodiment of bag, in an expanded state with a strap attached to a side portion; and

FIG. 12 shows a schematic perspective front view of the bag of FIG. 11 in a contracted state.

DESCRIPTION OF PREFERRED EMBODIMENTS

Referring firstly to FIG. 1, a variable volume bag is indicated generally at 10. The bag is shown in an expanded state in FIG. 1 and in a contracted state in FIG. 2. With reference in particular to FIG. 1, the bag includes a front 12, rear 14, left side 16, right side 18, an upper side 20 and a lower side 22. The bag 10 is made from a plurality of panels, which are joined either at seams, or at zip fasteners. Other types of fastener may be utilised, but zip fasteners are considered to be most effective. The bag 10 is multipurpose and is intended to be used as a small hand bag, which can be expanded into a larger bag, if necessary, to carry additional wares. The bag 10 can also be carried in a number of different ways, as will be described below.

The external wall 24 of the bag 10 encloses a main chamber extending across the entire width of the bag in the expanded state. In order to reduce the bag from the expanded state, as shown in FIG. 1 to the contracted state as shown in FIG. 2, side portions of the bag, indicated at 26 and 28 are collapsed and folded inwardly, as shown in FIG. 3, and are retained to a central region of the bag, indicated at 30, by zip fasteners 32, 34. In order to facilitate the folding, each side portion 26, 28 includes a side panel 36, a rear panel 38 (shown in FIG. 5), a front panel 40 and a further connecting panel 42 extending from the rear upper side of the bag between the side panel 36 and the front panel 40 and to the rear lower side of the bag. In other words, a thin strip of fabric is provided between the front panel 40 and side panel 36 which is connected to the other panels by seams 44 and/or zip fastener. These seams and/or zip fasteners 44 extend across the front side of the bag and lie at or around the fold line when the bag is moved to the contracted state as shown in FIG. 2. The positioning of the seams 44 facilitates the collapse of the side portions 26, 28, because the fabric tends to naturally fold inwards along the length of the seams 44.

The various methods of carrying the bag will now be described. Firstly, a handle 46 is attached to the upper side of the bag to the central portion 30. This handle 46 can be used to carry the bag when it is in either of the enlarged or reduced states. With reference in particular to FIG. 4, a pair of adjustable rucksack straps 48, 50, are attached to the external wall of the bag on the rear side 14 and the attachment point is disposed inside a sleeve 52 with open ends 54, 56 at the upper and lower ends of the bag. The other ends of the rucksack straps 48, 50 are each provided with the male part of a snap fit connector. Corresponding female parts of the connector 58 are disposed towards the lower side of the bag on the rear face 14 on either side of the central portion 30. The female connectors 58 are themselves disposed within small pockets on the external face of the bag and can be exposed for use or hidden within the pockets. By use of the female connectors 58, the bag 10 can be used as a rucksack in its contracted state. It will be appreciated that any suitable connector or fastener can be utilised.

Referring now to FIG. 7, if the bag is to be carried by the handle alone in the contracted state, the straps 48, 50 can be detached from the female connectors 58 and can be inserted into the sleeve 52 and hidden from view. By stowing the straps in this way, the straps do not tend to catch on furniture and loose items, in use. A zipable pocket 60 is also provided on the external surface of the sleeve 52.

With reference now to FIG. 5, the bag 10 can also be used as a rucksack in the expanded state. Further female fasteners 62, shown in FIG. 3, are provided on the side panels 36 of the left and right sides 16, 18 of the bag 10.

The bag 10 can also be carried in the manner of a bum-bag as shown in FIG. 6. In this arrangement, one of the rucksack straps 48 is withdrawn from the sleeve 52 and is attached to a further female fastener disposed on a flap 64 which extends from the area of the lower side of the bag. The flap 64 not only provides a mounting point for the female fastener but also increases the comfort of the bag 10 when worn around the waist in the manner of a bum-bag.

The bag 10 may be provided with a number of internal and external pockets as required. They may be closable by way of magnets, VELCRO®, poppers, zip fastener or the like. In the embodiments shown, first and second pockets 66, 68 are disposed on the central portion of the bag on the front wall 12 9 as shown in FIG. 2). Further pockets 70, 72 are provided on the rear of the bag when in the expanded state, which move to the sides of the bag when in the contracted state. A pocket is provided in the top of the bag on the rear side 14 below the handle 46. A webbed pocket 76 is also provided on the side panel 36, which is accessible when in the expanded state. Numerous pockets may be attached to the inside surface of the external wall of the bag 10 as desired, and various options may be provided for gaining access to the main internal compartment of the bag. For example, a zipped entry may be provided between the central portion 30 and the right hand portion 28. It will be appreciated that the arrangement of pockets disclosed has been optimised to provide the maximum number of pockets for the storage of small items such as keys, wallets and passports. However, any one of these pockets could be altered or omitted if desired.

Referring now to FIGS. 8 to 10, a second embodiment of the bag is indicated generally at 80. The bag 80 is similar in design to that of the bag 10 and common reference numerals will be used to designate parts in common with the bag 10. As in the first embodiment of the bag, the bag 80 has side portions 26, 28, as seen in FIG. 9, which can be folded inwardly about the rear of the bag and retained with zip fasteners to achieve a bag of reduced size as indicated in FIG. 8. The structural design of the side portions 26, 28 is similar, in that each side portion 26, 28 includes a side panel 36, a front panel 40 and a further connecting panel 42 extending from the rear upper side of the bag between the side panel 36 and the front panel 40 to the rear lower side of the bag. Two pockets 82, 84 (see FIG. 8) are disposed on the front central portion of the bag 80, one above the other, and are accessed through zip fasteners. A handle 46 is provided at the top of the central portion of the bag as in the previous embodiments.

A significant difference between the bags 10, 80 is the way in which the main chamber of the bag is accessed. In the case of the bag 80, a zipped opening 86 extends across the rear of the bag 14 substantially across the full width of the bag when in the extended position. Conveniently, the same zip opening 86 can be utilised when the bag is in the reduced size mode, because the zip extends around the sides of the bag, thereby enabling the upper side 20 of the bag to be folded upwards about the top of the front 12 of the bag in the reduced state mode.

In this particular embodiment as shown, there are no rucksack straps, but rather triangular shaped loops 88 are provided on the upper external face of the bag on the side portions 26, 28 of the bag and are accessible when the bag is in either state. A strap 90 can be attached to the triangular members 88 in conventional manner using a spring loaded catch. Pockets 92, 94 can be stitched to the inside of the external wall of the bag as desired (see FIG. 10).

Referring now to FIGS. 11 and 12, a third embodiment of bag is indicated generally at 100. Common reference numerals will be used to describe parts in common with the two previous embodiments of bag 10, 80. The bag 100 includes folding side portions 26, 28 constructed in exactly the same way as the side portions of the previous two embodiments. However, this bag is much smaller in size.

A single pocket 102 is provided on the front of the bag 12, which is accessed by a single zip. Other carrying options include a single strap 104 which cooperates with a flap 106 at the lower side 22 of the bag. Both the strap 104 and flap 106 may be tucked away inside the sleeve 52, which is similar to that of the first embodiment, and the strap and flap are held together by a male and female connector. A further method of carrying the bag is by means of a shoulder strap 108, as shown in FIG. 11, which attaches in conventional manner to triangular shaped loops 88 provided on the upper and lower sides of the side portion 28. These are only accessible, when the side portion 28 is in the extended state.

It will be appreciated that in all of the embodiments disclosed, either one or both of the side portions can be provided in the folded or extended state. The elements and teachings of the various illustrative embodiments may be combined in whole or in part in some or all of the illustrative embodiments. In addition, one or more of the elements and teachings of the various illustrative embodiments may be omitted, and least in part, and/or combined, at least in part, one or more of the other elements and teachings of the various illustrative embodiments.

The bag is advantageous because it has multiple potential uses due to its versatility in size, volume and carrying position and is thus able to meet the ever changing demands of everyday life. It obviates the need to purchase multiple bags for different uses or environments, thereby reducing costs for the user. It also avoids items such as keys and mobile telephones, being forgotten in a bag when the bag is substituted for another as the user moves from one activity or environment to another. The user quickly and easily rearranges the bag to the desired arrangement as required. It has been designed with safety in mind, proving room for concealed stowage of the straps when not in use. 

1. A variable volume bag comprising a main chamber, the main chamber having an external wall with an inside face and an outside face, at least part of the external wall being moveable between at least one folded position, in which the useable volume of the main chamber and the external size of the bag is reduced, and at least one extended position in which the useable volume of the main chamber and the external size of the bag is increased, a material join disposed substantially at or proximate a fold position for facilitating movement to the folded position, and retaining means for securing the external wall in the folded position.
 2. A variable volume bag according to claim 1, wherein the retaining means is a zip fastener.
 3. A variable volume bag according to claim 1, wherein the external wall is moveable in two positions located on a left side of the bag and on a right side of the bag.
 4. A variable volume bag according to claim 3, wherein each movable part of the external wall includes a side panel of the bag, and a portion of the front, rear, lower side and upper side of the bag.
 5. A variable volume bag according to claim 4, wherein a continuous seam is provided around the side panel.
 6. A variable volume bag according to claim 4, wherein a continuous seam is provided around at least part of the periphery of the side panel and the remaining part of the periphery of the side panel is releasably fastened for providing access to the main chamber when the at least part of the external wall is in an extended position.
 7. A variable volume bag according to claim 6, in which the remaining part of the periphery of the side panel is releasably fastened by a zip fastener.
 8. A variable volume bag according to claim 5, wherein the front portion of the or each moveable part is provided in two panels, joined at a continuous seam, the continuous seam running substantially parallel to a fold line of the folded position.
 9. A variable volume bag according to claim 8, wherein the seam is a bound seam, the binding of the seam being disposed on the inside face.
 10. A variable volume bag according to claim 1, wherein an opening closed by a zip fastener is provided in the external wall for providing access to the main chamber, the opening extending around at least part of the periphery of the main chamber.
 11. A variable volume bag according to claim 10, wherein the opening is provided across the rear side of the bag and the zip is accessible when the or each part of the external wall is in either of the folded or extended positions.
 12. A variable volume bag according to claim 10, wherein the opening extends substantially across the full width of the rear of the bag.
 13. A variable volume bag according to claim 1, wherein an external sleeve is provided on the external wall, and at least one strap is provided, the at least one strap having a free end and a fixed end attached to the bag, the at least one strap being moveable in use between a stowed position in which the free end and substantially the length of the strap is stowed in the sleeve and an operative position in which the free end and substantially the length of the strap is removed from the sleeve and is releasably attached to the bag.
 14. A variable volume bag according to claim 13, wherein the sleeve is disposed on a rear side of the bag, the sleeve being oriented in longitudinal alignment with a longitudinal axis of the bag and with an aperture disposed at least one end thereof.
 15. A variable volume bag according to claim 13, wherein the fixed end of the strap is attached to the bag proximate a mouth of an aperture of the sleeve and proximate an upper side of the bag.
 16. A variable volume bag according to claim 13, wherein the free end of the at least one strap is releasably attached to the bag by a releasable fastening.
 17. A variable volume bag according to claim 15, wherein a releasable fastening is disposed on a flap extending from the junction of an under side of the bag and the rear side of the bag.
 18. A variable volume bag according to claim 16, wherein a pair of second releasable fastening are disposed at the junction of the rear side of the bag with a side of the bag, proximate to the junction of the under side of the bag and the rear side of the bag.
 19. A variable volume bag according to claim 13, wherein the at least one carrying strap includes a padded section.
 20. A variable volume bag according to claim 16, wherein a third releasable fastening is disposed on the or each movable external wall and is accessible when the bag is in the extended position. 